Guardians Of The Galaxy and Stranger Things gave the format a healthy boost.

Cassettes had a very good year in 2017, with sales rising by 35%, according to The Hollywood Reporter. Nielsen Music reported 174,000 copies sold in the US, 45,000 more copies than in 2016.

The big push was due to cassette soundtrack releases for Stranger Things and Guardians Of The Galaxy. Other top selling cassettes include The Hamilton Mixtape and recent reissues of Prince’s Purple Rain, Nirvana’s Nevermind and Kanye West’s Yeezus.

Cassette sales still only comprised 0.10% of all albums sold during the year though, so don’t worry about the increasing popularity raising production costs.